ABAP Select data from SAP table IPVPAYMENTHDR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IPVPAYMENTHDR table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to IPVPAYMENTHDR. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the IPVPAYMENTHDR table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_IPVPAYMENTHDR TYPE STANDARD TABLE OF IPVPAYMENTHDR,
      WA_IPVPAYMENTHDR TYPE IPVPAYMENTHDR,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <IPVPAYMENTHDR> TYPE IPVPAYMENTHDR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IPVPAYMENTHDR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IPVPAYMENTHDR
  INTO TABLE IT_IPVPAYMENTHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPVPAYMENTHDR
*  INTO TABLE @DATA(IT_IPVPAYMENTHDR2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_IPVPAYMENTHDR INDEX 1 INTO DATA(WA_IPVPAYMENTHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IPVPAYMENTHDR ASSIGNING <IPVPAYMENTHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPVPAYMENTHDR>-MANDT = 1.
<IPVPAYMENTHDR>-PROCESSRUN = 1.
<IPVPAYMENTHDR>-PAYMENTREFERENCE = 1.
<IPVPAYMENTHDR>-PRAOWNER = 1.
<IPVPAYMENTHDR>-PAYMENTDATE = 1.

ENDLOOP.

LOOP AT IT_IPVPAYMENTHDR INTO WA_IPVPAYMENTHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPVPAYMENTHDR-PAYMENTTYPE, sy-vline,
  WA_IPVPAYMENTHDR-COMPANYCODE, sy-vline,
  WA_IPVPAYMENTHDR-CHECKSTATUS, sy-vline,
  WA_IPVPAYMENTHDR-PAYMENTSTATUSDATE, sy-vline,
  WA_IPVPAYMENTHDR-PAYMENTHEADERREJECTIONRSN, sy-vline,
  WA_IPVPAYMENTHDR-CHECKISOUTOFTOLERANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPVPAYMENTHDR you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_IPVPAYMENTHDR TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_IPVPAYMENTHDR INTO WA_IPVPAYMENTHDR.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field PRAOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPVPAYMENTHDR-PRAOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPVPAYMENTHDR-PRAOWNER.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IPVPAYMENTHDR_STR, 
MANDT TYPE STRING,
PROCESSRUN TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
PRAOWNER TYPE STRING,
PAYMENTDATE TYPE STRING,
PAYMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
CHECKSTATUS TYPE STRING,
PAYMENTSTATUSDATE TYPE STRING,
PAYMENTHEADERREJECTIONRSN TYPE STRING,
CHECKISOUTOFTOLERANCE TYPE STRING,
CHECKISSENTTOBANK TYPE STRING,
ORIGINTRANSACTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
OWNERNETAMOUNT TYPE STRING,
VARIANCEAMOUNT TYPE STRING,
VARIANCERATIO TYPE STRING,
MINIMUMPAYMENTAMT TYPE STRING,
NUMBEROFDOCUMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPVPAYMENTHDR_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_IPVPAYMENTHDR_STR-MANDT sy-vline 
WA_IPVPAYMENTHDR_STR-PROCESSRUN sy-vline 
WA_IPVPAYMENTHDR_STR-PAYMENTREFERENCE sy-vline 
WA_IPVPAYMENTHDR_STR-PRAOWNER sy-vline 
WA_IPVPAYMENTHDR_STR-PAYMENTDATE sy-vline 
WA_IPVPAYMENTHDR_STR-PAYMENTTYPE sy-vline 
WA_IPVPAYMENTHDR_STR-COMPANYCODE sy-vline 
WA_IPVPAYMENTHDR_STR-CHECKSTATUS sy-vline 
WA_IPVPAYMENTHDR_STR-PAYMENTSTATUSDATE sy-vline 
WA_IPVPAYMENTHDR_STR-PAYMENTHEADERREJECTIONRSN sy-vline 
WA_IPVPAYMENTHDR_STR-CHECKISOUTOFTOLERANCE sy-vline 
WA_IPVPAYMENTHDR_STR-CHECKISSENTTOBANK sy-vline 
WA_IPVPAYMENTHDR_STR-ORIGINTRANSACTION sy-vline 
WA_IPVPAYMENTHDR_STR-CREATEDBYUSER sy-vline 
WA_IPVPAYMENTHDR_STR-CREATIONDATETIME sy-vline 
WA_IPVPAYMENTHDR_STR-COMPANYCODECURRENCY sy-vline 
WA_IPVPAYMENTHDR_STR-OWNERNETAMOUNT sy-vline 
WA_IPVPAYMENTHDR_STR-VARIANCEAMOUNT sy-vline 
WA_IPVPAYMENTHDR_STR-VARIANCERATIO sy-vline 
WA_IPVPAYMENTHDR_STR-MINIMUMPAYMENTAMT sy-vline 
WA_IPVPAYMENTHDR_STR-NUMBEROFDOCUMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.